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Finding the Fourth Proportional to 64,813.92, 89,442.68 and 36,133.25

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Solution

The fourth proportional to 64,813.92, 89,442.68 and 36,133.25 is: 49,863.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,813.92 : 89,442.68 = 36,133.25 : x
  2. Step 2: Convert to fraction form
    64,813.92/89,442.68 = 36,133.25/x
  3. Step 3: Cross multiply
    64,813.92x = 89,442.68 × 36,133.25
  4. Step 4: Simplify right side
    64,813.92x = 3,231,854,089.23
  5. Step 5: Solve for x
    x = 3,231,854,089.23/64,813.92
  6. Step 6: Final answer
    x = 49,863.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.